e48. ONE OR BOTH COMPOSITE TAILLIGHTS DO NOT ILLUMINATE (CONT)
TEST OPTIONS
REASON FOR QUESTION
Is continuity present from
relay K20 terminal 85 on
PDP to ground?
KNOWN INFO
NO
YES
POSSIBLE PROBLEMS
Repair wire 3054 from relay K20
terminal 85 on PDP to terminal board
TB2 position 44 on PDP (para 2-40) or
replace WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
Continuity Test or
STE/ICE-R Test #91
Other service light illuminates.
Circuit breaker CB80 OK.
Rear lights cable
assembly OK.
Faulty dashboard cable
assembly.
Faulty relay K20.
14.
Replace relay
K20 (para 7-9).
If continuity is not present,
wire 3054 is faulty. If
continuity is present, relay
K20 is faulty.
TM 9-2320-365-20-1
2-594.16 Change 1